How to publish post from code (in a component)?

I just need a pointer to documentation - I've developed a component that creates a blog entry once per day. I'd like to have it post that entry - what's the proper way to do this?

It's a component, so I can call into EB code directly, or use an API if that's the right way - but it looks like the XMLRPC method is long gone.

So... given my PHP code and a nice, rich string of text, how do I create and post an entry in code?

Thanks!